<template>
  <div>
    <!-- 面包屑导航 -->
    <tab-control :title="['首页','商品管理','添加商品']"></tab-control>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 提示区域 -->
      <el-alert
        title="添加商品信息"
        type="info"
        center
        show-icon
        :closable="false"
      >
      </el-alert>
      <!-- 步骤条 -->
      <el-steps
        :space="200"
        align-center
        :active="activeIndex - 0"
        finish-status="success"
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <!-- tab标签页 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="100px"
        label-position="top"
      >
        <el-tabs
          v-model="activeIndex"
          :tab-position="'left'"
          :before-leave="beforeTabsleave"
          @tab-click="tabClick"
        >
          <!-- 基本信息 -->
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addForm.goods_cat"
                :options="cateList"
                :props="catePrpos"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <!-- 商品参数 -->
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTableData"
              :key="item.attr_id"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  :label="cb"
                  v-for="(cb, i) in item.attr_vals"
                  :key="i"
                  border
                ></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <!-- 商品属性 -->
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlyTableData"
              :key="item.attr_id"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <!-- 商品图片 -->
          <el-tab-pane label="商品图片" name="3">
            <!-- action表示图片套上传的后台的接口 -->
            <el-upload
              :headers="headerObj"
              :action="uploadURL"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :on-success="handleSuccess"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <!-- 商品内容 -->
          <el-tab-pane label="商品内容" name="4">
            <!-- 富文本编辑器组件 -->
            <quill-editor v-model="addForm.goods_introduce"></quill-editor>
            <el-button type="primary" @click="add" class="btnAdd"
              >添加商品</el-button
            >
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>

    <!-- 图片预览 -->
    <el-dialog title="图片预览" :visible.sync="previewVisible" width="50%">
      <img :src="previewPath" alt="" class="previewImg" />
    </el-dialog>
  </div>
</template>

<script>
import TabControl from '@/components/tabcontrol/TabControl.vue'
import { getAllCateList, parameterList, addGoods } from "@/api/utils";
import _ from "lodash";
export default {
  name: "Add",
  components:{
    TabControl
  },
  data() {
    return {
      activeIndex: "0",
      addForm: {
        goods_name: "",
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics: [],
        goods_introduce: "",
        attrs: [],
      },
      addFormRules: {
        goods_name: [
          { required: true, message: "请输入商品名称", trigger: "blur" },
        ],
        goods_price: [
          { required: true, message: "请输入商品价格", trigger: "blur" },
        ],
        goods_weight: [
          { required: true, message: "请输入商品重量", trigger: "blur" },
        ],
        goods_number: [
          { required: true, message: "请输入商品数量", trigger: "blur" },
        ],
        goods_cat: [
          { required: true, message: "请选择商品分类", trigger: "blur" },
        ],
      },
      cateList: [],
      catePrpos: {
        expandTrigger: "hover",
        label: "cat_name",
        value: "cat_id",
        children: "children",
      },
      manyTableData: [],
      onlyTableData: [],
      uploadURL: "http://127.0.0.1:8888/api/private/v1/upload",
      headerObj: {
        Authorization: window.sessionStorage.getItem("token"),
      },
      previewPath: "",
      previewVisible: false
    };
  },
  created() {
    this.getGoodsCateList();
  },
  methods: {
    //获取商品分类数据列表
    getGoodsCateList() {
      getAllCateList().then((res) => {
        // console.log(res);
        if (res.meta.status != 200) return this.$message.error(res.meta.msg);
        this.$message.success(res.meta.msg);
        this.cateList = res.data;
      });
    },
    // 级联选择器
    handleChange() {
      // console.log(this.addForm.goods_cat);
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = [];
      }
    },
    beforeTabsleave(activeName, oldActiveName) {
      if (oldActiveName === "0" && this.addForm.goods_cat.length != 3) {
        this.$message.error("请先选择商品分类!");
        return false;
      }
    },
    // tabs发生变化
    tabClick() {
      // console.log(this.activeIndex);
      if (this.activeIndex === "1") {
        parameterList(this.cateId, "many").then((res) => {
          // console.log(res);
          if (res.meta.status != 200) return this.$message.error(res.meta.msg);
          res.data.forEach((item) => {
            item.attr_vals =
              item.attr_vals.length === 0 ? [] : item.attr_vals.split(" ");
          });
          this.manyTableData = res.data;
        });
      } else if (this.activeIndex === "2") {
        parameterList(this.cateId, "only").then((res) => {
          console.log(res);
          if (res.meta.status != 200) return this.$message.error(res.meta.msg);
          this.onlyTableData = res.data;
        });
      }
    },
    //处理图片预览
    handlePreview(file) {
      this.previewPath = file.response.data.url;
      this.previewVisible = true;
      console.log(previewPath);
    },
    //移除图片
    handleRemove(file) {
      // console.log(file);
      const filePath = file.response.data.tmp_path;
      const i = this.addForm.pics.findIndex((x) => x.pic === filePath);
      this.addForm.pics.splice(i, 1);
      // console.log(this.addForm);
    },
    //上传图片成功
    handleSuccess(response) {
      // console.log(response);
      const picInfo = { pic: response.data.tmp_path };
      this.addForm.pics.push(picInfo);
      // console.log(this.addForm);
    },
    //添加商品
    add() {
      this.$refs.addFormRef.validate((valid) => {
        if (!valid) return this.$message.error("请填写必要的表单项!");
        //深拷贝
        const form = _.cloneDeep(this.addForm);
        form.goods_cat = form.goods_cat.join(",");
        // console.log(this.manyTableData);
        // console.log(this.onlyTableData);
        //处理动态参数
        this.manyTableData.forEach((item) => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(" "),
          };
          this.addForm.attrs.push(newInfo);
        });
        //处理静态属性
        this.onlyTableData.forEach((item) => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals };
          this.addForm.attrs.push(newInfo);
        });
        form.attrs = this.addForm.attrs;
        // console.log(from);
        addGoods(form).then((res) => {
          console.log(res);
          if (res.meta.status != 201) return this.$message.error(res.meta.msg);
          this.$message.success(res.meta.msg);
          this.$router.push("/goods");
        });
      });
    },
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length == 3) {
        return this.addForm.goods_cat[2];
      }
      return null;
    },
  },
};
</script>

<style lang="less" scoped>
.el-checkbox {
  margin: 0 10px 0 0 !important;
}
.previewImg {
  display: block;
  margin: 0 auto;
  width: 60%;
  height: 60%;
}
::v-deep .ql-editor {
  min-height: 300px;
}
.btnAdd {
  margin-top: 15px;
}
</style>
